In this question, a statement of assertion is followed by …

Physics System of Particles Rotational Motion Assertion & Reason MCQ (Single Correct)

In this question, a statement of assertion is followed by a statement of reason . Mark the correct choice as:

Assertion: It is harder to open and shut the door if we apply force near the hinge.
Reason: Torque is maximum at hinge of the door.

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If assertion is false but reason is true.

Text Solution

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The correct answer is:

: Torque Force perpendicular distance of line of force from the axis of rotation. Hence for

a given applied force, torque or true tendency of rotation will be high for large value of . If distance is smaller, then greater force is required to cause the same torque, hence it is harder to open or shut down the door by applying a force near the hinge.

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